Rachel Argosy was a late bloomer in terms of her mutant nature not manifesting until she was 20 due to her having meningitis as a child. A high school music teacher in Two Forks, Maine, Argosy was fired after the school received complaints from parents about her being a mutant. She sought to use her powers to make the school's board leader, Harry Sharp, change his mind, but inadvertently caused his death from a heart attack. Quicksilver and Multiple Man of the government-sponsored X-Factor were sent to apprehend her. Despite her best attempts to convince them otherwise, Argosy was found guilty of Sharp's death and sentenced to a lengthy prison term. She is one of the 198 mutants to have retained their powers after the events of M-Day.